Man killed after firing shot at Houston airport - Article Photos 1/3

Security at Bush Intercontinental Airport stand at the bottom of the escalators as police investigate a shooting near Terminal B on Thursday, May 2, 2013 in Houston. Shots were fired near a ticket counter, critically injuring one armed man and sending people in the terminal scrambling and screaming, a Houston police spokesman and witnesses said. One person has been taken to an area hospital with life threatening injuries. It was not immediately clear who fired the shots. (AP Photo/Houston Chronicle, Cody Duty) MANDATORY CREDIT